GB2482444B - Pattern detection circuitry - Google Patents

Pattern detection circuitry

Info

Publication number
GB2482444B
GB2482444B GB201118390A GB201118390A GB2482444B GB 2482444 B GB2482444 B GB 2482444B GB 201118390 A GB201118390 A GB 201118390A GB 201118390 A GB201118390 A GB 201118390A GB 2482444 B GB2482444 B GB 2482444B
Authority
GB
United Kingdom
Prior art keywords
pattern detection
detection circuitry
circuitry
pattern
detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
GB201118390A
Other versions
GB201118390D0 (en
GB2482444A (en
Inventor
John Laurence Pennock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cirrus Logic International UK Ltd
Original Assignee
Wolfson Microelectronics PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wolfson Microelectronics PLC filed Critical Wolfson Microelectronics PLC
Priority to GB201118390A priority Critical patent/GB2482444B/en
Publication of GB201118390D0 publication Critical patent/GB201118390D0/en
Publication of GB2482444A publication Critical patent/GB2482444A/en
Application granted granted Critical
Publication of GB2482444B publication Critical patent/GB2482444B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/22—Means responsive to presence or absence of recorded information signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/342—Muting when some special characteristic of the signal is sensed which distinguishes it from noise, e.g. using speech detector
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/19—Monitoring patterns of pulse trains
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G11B2020/00014—Time or data compression or expansion the compressed signal being an audio signal
    • G11B2020/00065—Sigma-delta audio encoding
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/10537—Audio or video recording
    • G11B2020/10546—Audio or video recording specifically adapted for audio data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B2020/10935—Digital recording or reproducing wherein a time constraint must be met
    • G11B2020/10972—Management of interruptions, e.g. due to editing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2545—CDs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
GB201118390A 2007-03-30 2007-03-30 Pattern detection circuitry Active GB2482444B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201118390A GB2482444B (en) 2007-03-30 2007-03-30 Pattern detection circuitry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201118390A GB2482444B (en) 2007-03-30 2007-03-30 Pattern detection circuitry

Publications (3)

Publication Number Publication Date
GB201118390D0 GB201118390D0 (en) 2011-12-07
GB2482444A GB2482444A (en) 2012-02-01
GB2482444B true GB2482444B (en) 2012-08-01

Family

ID=45373365

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201118390A Active GB2482444B (en) 2007-03-30 2007-03-30 Pattern detection circuitry

Country Status (1)

Country Link
GB (1) GB2482444B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB215410A (en) * 1923-01-04 1924-05-05 John Horace Fry Improvements in and relating to the disposal of industrial wastes
US5369728A (en) * 1991-06-11 1994-11-29 Canon Kabushiki Kaisha Method and apparatus for detecting words in input speech data
US5889483A (en) * 1996-08-22 1999-03-30 Sony Corporation Mute signal processing circuit for one-bit digital signal
US6026310A (en) * 1997-01-21 2000-02-15 U.S. Philips Corporation Method of reducing clicks in a data transmission system
US20020025010A1 (en) * 2000-08-29 2002-02-28 Motohiro Yamazaki Zero value-detecting circuit
WO2002093801A2 (en) * 2001-05-11 2002-11-21 Koninklijke Philips Electronics N.V. Silence detection

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB215410A (en) * 1923-01-04 1924-05-05 John Horace Fry Improvements in and relating to the disposal of industrial wastes
US5369728A (en) * 1991-06-11 1994-11-29 Canon Kabushiki Kaisha Method and apparatus for detecting words in input speech data
US5889483A (en) * 1996-08-22 1999-03-30 Sony Corporation Mute signal processing circuit for one-bit digital signal
US6026310A (en) * 1997-01-21 2000-02-15 U.S. Philips Corporation Method of reducing clicks in a data transmission system
US20020025010A1 (en) * 2000-08-29 2002-02-28 Motohiro Yamazaki Zero value-detecting circuit
WO2002093801A2 (en) * 2001-05-11 2002-11-21 Koninklijke Philips Electronics N.V. Silence detection

Also Published As

Publication number Publication date
GB201118390D0 (en) 2011-12-07
GB2482444A (en) 2012-02-01

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20150820 AND 20150826